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# Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB. If
# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
# Cambridge, MA 02139, USA.
#
# Master Makefile for the GNU C library
#
ifneq (,)
This makefile requires GNU Make.
endif
# This is the default target; it makes everything except the tests.
.PHONY: all
all: lib others # doc
configure: configure.in
autoconf $(ACFLAGS)
include Makeconfig
include $(objpfx)sysd-dirs
define \n
endef
sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
# These are the subdirectories containing the library source.
+ansi_dirs := assert ctype locale math setjmp \
signal stdio stdlib malloc string time
+posix_dirs := dirent grp pwd posix io termios
+other_dirs := resource socket misc gnulib $(wildcard crypt) manual
subdirs := $(strip $(+ansi_dirs) $(+posix_dirs) $(+other_dirs) \
$(sysdep-subdirs))
export subdirs := $(subdirs) # Benign, useless in GNU make before 3.63.
# All initialization source files.
+subdir_inits := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
# All subdirectories containing initialization source files.
+init_subdirs := $(patsubst %/,%,$(dir $(+subdir_inits)))
# These are the targets that are made by making them in each subdirectory.
+subdir_targets := subdir_lib objects objs others mostlyclean subdir_clean\
tests subdir_lint.out \
subdir_echo-headers subdir_echo-distinfo subdir_install
headers := features.h stubs.h errno.h sys/errno.h errnos.h limits.h \
$(stddef.h) $(stdarg.h)
echo-headers: subdir_echo-headers
ifdef +gnu-stabs
# We're using the GNU linker, so we use the set-element init function.
+init := set-init
else
# We're not using the GNU linker, so we use the munch init function.
+init := munch-init
$(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
awk -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
mv $@-t $@
endif
aux := sysdep $(+init) version start
# What to install.
install-lib = crt0.o Mcrt1.o # libc.a is done by Makerules.
include Makerules
# Install from subdirectories too.
install: subdir_install
# `crt0' is the traditional name for the startup code,
# so that's what we install start.o as.
$(objpfx)crt0.o: $(objpfx)start.o
-rm -f $@
ln $< $@
$(objpfx)Mcrt1.o:
cp /dev/null $(objpfx)Mcrt1.c
$(COMPILE.c) $(objpfx)Mcrt1.c $(OUTPUT_OPTION)
rm -f $(objpfx)Mcrt1.c
$(libc.a): subdir_lib
$(objpfx)sysd-dirs: $(+sysdir_pfx)config.make
(echo define sysdep-subdirs; \
for dir in $(sysdirs); do \
if [ -r $(sysdep_dir)/$$dir/Subdirs ]; then \
cat $(sysdep_dir)/$$dir/Subdirs; \
else true; \
fi; \
done; \
echo endef) > $@-tmp
mv $@-tmp $@
# Makerules creates a file `stub-$(subdir)' for each subdirectory, which
# contains `#define __stub_FUNCTION' for each function which is a stub.
# Here we paste all of these together into <stubs.h>.
subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)stub-$(dir))
# Call the subdirs to make their stub-SUBDIR files.
$(subdir-stubs): $(common-objpfx)stub-%: FORCE
$(MAKE) -C $* stubs
FORCE:
$(objpfx)stubs.h: $(common-objpfx)stub- $(subdir-stubs)
(echo '/* This file is automatically generated.';\
echo ' It defines a symbol `__stub_FUNCTION'\'' for each function';\
echo ' in the C library which is a stub, meaning it will fail';\
echo ' every time called, usually setting errno to ENOSYS. */';\
sort $^) > $@.new
mv $@.new $@
# This makes the Info or DVI file of the documentation from the Texinfo source.
.PHONY: info dvi
info dvi:
$(MAKE) -C manual $@
# This makes all the subdirectory targets.
.PHONY: $(+subdir_targets)
$(+subdir_targets):
@lose=nil; \
for dir in $(subdirs); do \
$(+cmdecho) $(MAKE) -C $$dir $@;\
$(MAKE) -C $$dir $@ || lose=t; \
done; \
test $$lose = nil
# This clobbers everything that can be regenerated.
.PHONY: clean realclean distclean
realclean: distclean
clean:
-rm -f $(objects) $(+depfiles) munch-init.c $(objpfx)depend-
-rm -f $(libc.a) $(addprefix $(objpfx),$(install-lib)) core TAGS
-rm -f $(addprefix $(+sysdir_pfx),sysd-Makefile sysd-dirs sysdirs)
# This is done this way rather than having `subdir_clean' be a
# dependency of this target so that libc.a will be removed before the
# subdirectories are dealt with and so they won't try to remove object
# files from it when it's going to be removed anyway.
@$(MAKE) subdir_clean
distclean: clean
-rm -f $(addprefix $(objpfx),config.status config.make)
.PHONY: echo_subdirs
echo_subdirs:;@echo '$(subdirs)'
.PHONY: echo-distinfo parent_echo-distinfo
echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
parent_echo-distinfo:
@echo $(addprefix +header+,$(headers)) \
$(addprefix +nodist+,$(generated))
# Make the distribution tarfile.
distribute := README INSTALL NOTES COPYING.LIB COPYING ChangeLog NEWS \
Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
ansidecl.h \
configure configure.in aclocal.m4 config.sub config.guess\
munch-tmpl.c munch.awk gnu-stabs.h sysdep.h
export distribute := $(strip $(distribute))
export generated := $(generated) $(objpfx)stubs.h
.PHONY: dist
dist: Make-dist $(distribute)
$(MAKE) -f $< no_deps=t $(Make-dist-args)
README: README.template version.c ; # Make-dist should update README.
INSTALL: manual/maint.texi
makeinfo --no-validate --no-warn --no-headers $< -o $@
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